fatal: Could not parse object '939679f1bb6a8d16d40974c7d6921eff2195c2a9'.
From https://github.com/NASA-Tensegrity-Robotics-Toolkit/NTRTsim
 * branch            master     -> FETCH_HEAD
HEAD is now at 939679f Remove deprecated tgDataObserver_tgDLR functions from tg model. Conditional compiles so things build.
939679f1bb6a8d16d40974c7d6921eff2195c2a9